Welcome to the club, Runt..
I ran a range exercise one time where an experienced officer managed to load a .40 FMJ out of the wrong box, into his Sig 220. It made that 'funny noise' you referred to and didn't work the slide, of course, but did get outta the chambe far enough to turn sideways and jam the gun. He just stood there staring at his gun (which had never jammed before, or since for that matter) in disbelief. I went over and racked it open and shook out the swelled .40 round (looked about like your pic) while he loudly proclaimed that he hadn't loaded a .40.... I said " Well, I didn't load it, so which one of you did it?" He finally laughed and admitted to himself and the rest of os that he had to have done it. No damage to gun or shooter in this case either.
I guess the lesson to be learned is that when you're loading up several guns of different calibers, keep the ammo seperate. Glad nobody was dented in your little ordeal..